Ok i am running Centos 6.2 on a Sony Vaio laptop and Ekiga will not find my mic or speakers.... Yes they work VLC and rythmbox play sound and Cheesecam will record audio as well.... Im not sure what info you need so tell me what to type into the Terminal and ill post it... o if it matters its gnome Desktop

What have you done to test it? Did you try the Ekiga echo tests and check the Ekiga HCL?

yes i have tried the echo test... no sound as far as the HCL i have not looked at it persay however when I ran Fedora and used Ekiga... the sound worked... it was not a good quality sound agreed but people could hear me

The only solution to make microphone work is to install linux-backports-modules-alsa-generic...

Just go to:

Menu / System / Administration / Synaptic Package Manager

And search and mark for installation:

linux-backports-modules-alsa-generic

tip: if you have multiple versions click on the first and read the description which should inform what name to install...

If after the reboot and mic mute is off, still does not work, just go to terminal and type:

sudo nano /etc/modprobe.d/alsa-base.conf

and add or change the following:

options snd-hda-intel model=auto enable=yes

Then Ctrl+X, type Y to write and exit, reboot and mic will work.

Bye and have lots of fun with Ubuntu (the best).